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Roliga timmen - Utmaning - Siffran 15

Siffrorna i varje rad, kolumn och diagonal ska bli 15

Publisher: Texas Instruments Sverige

Argomento:  Mathematics

Tags: Circumference, Perimeter

Diameters of Polygons

Investigate the ratio of perimeter to diameter for regular polygons.

Author: Barrie Galpin

Tags: 2D shapes, Perimeter

The sheep-pen problem

Recognise a quadratic in a realistic context and solve an optimisation problem

Author: Barrie Galpin

Tags: Quadratic, Perimeter, Area, Algebra

The arbelos

Investigate relationships between radii of the semicircles and the perimeter and area of this interesting shape

Author: Barrie Galpin

Tags: Perimeter, Area, Circles